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New testcase for bug

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2670 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-05-20 20:48:24 +00:00
parent 618b4a11bb
commit 7add8bdc08
1 changed files with 20 additions and 0 deletions
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test/Transforms/SCCP/2002-05-20-MissedIncomingValue.ll Normal file
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; This test shows a case where SCCP is incorrectly eliminating the PHI node
; because it thinks it has a constant 0 value, when it really doesn't.
; RUN: as < %s | opt -sccp | dis | grep phi
int "test"(int %A, bool %c) {
bb1:
br label %BB2
BB2:
%V = phi int [0, %bb1], [%A, %BB4]
br label %BB3
BB3:
br bool %c, label %BB4, label %BB5
BB4:
br label %BB2
BB5:
ret int %V
}